College football · NFLTuesday, October 13, 2026
The Upset Report
NFL · 2020 · Week 1 · Sunday, September 13, 2020

Arizona Cardinals upset San Francisco 49ers, 24–20

The Cardinals closed as 7-point underdogs and won outright. The betting market gave them a 28% chance.

Final24–20
Upset size7
Chance to win28%
Rank in 202011th of 44

It was the 2nd-biggest of 3 NFL upsets in 2020 Week 1, and the 11th-biggest of the 2020 season. Arizona Cardinals pulled off 1 other upset in 2020.

Other NFL upsets in 2020 Week 1

  1. 7-point underdog27% to winRecap
    Upset size7
  2. 5.5-point underdog32% to winRecap
    Upset size5.5

Arizona Cardinals’ other 2020 upsets

  1. Week 73.5-point underdog37% to winOTRecap
    Upset size3.5

More: Arizona Cardinals upsets · San Francisco 49ers upsets · all Week 1 upsets · how upset size works